Sherman s



JEWETT & ROOT.

Cooking Stove. No. 104,461.

- Patented June 2|,1870.

haunt chitin.

SHERMAN s; JEWETT AND. FRANCIS H.

Letters Patmt No. 104,461, dated June 21, 1870.

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Theschedu le referred to in these Letters Patent and making part of thesame.

We, SHERMAN S. Jnwnrr and FRANCIS H. Roor, of the city of'Bufialqconntyof Erie and State of New York, haveinventeda certain Improvement inCooking- Stoves, 'of which they-following is a specification. i i

' Our improvement relates to what are known as rear extension stoves;and

The invcntion consists in extending the boiler-flue,

T of a the full width of the stove, backward beyond the driving-finesand' back-plate of the stove, and proriding it with a damperat its rear,opening directly into the upcast-flue, which extends backward under thesaid extension and upward at its rear, in the form of a projectiontherefrom, whereby such extcn'sion'can be heated toa sufficiently hightemperture to enable it to be used for the ordinary purposes of cookingor heating water when a boiler or reservoir is arranged thereon, in thesame manner as theforward portionsof the stove, all as hereinafter shownand described' y a a In the accompanying drawing-- Figure I is a centralverticalisection of our improved stove. i 1 Figure II'is a pl'anof therear portion. fl Figure III is ahorieont-al section through theboiler-Like letters of reference designate like parts in eachlof the figuresAisthe oven.

B, the boiler-flue. CO, the diving-fines. v D, the return andupcast-rfluc, and D, alwater-bofler. j The top plate f of the stove, andbottom plate f of the boiler-flue, extend back beyond the diving-finesso as to form an extensionor heating-chamber, F, the top plate of whichwe prefer to provide with suitable holes to receive a water-boiler, asshown, or any other ordinary vessel, as may be required.

The back-plate of the diving and upcast-flues is madeto incline backwardfrom the bottom, as shown in fig. I,.so as to enlarge the mouths of thediving flues, whiehfacilitatcs the draught, while it brings the rearportionof the months under the boiler, or other vessel placed over theextension F.

The upcast-flue, as it reaches the bottom plate f of thc'boiler-flue,extends hackwardunder it and up at the rear of the extension 1 fromwhich it projects, as shown. a

G is the damper-in the center of the back plate of the. extension F,through which the products of com bustion from the boiler-flue can belet directlyinto the .upcast, when required.

The space F, formed by the backward extension of the top and bottomplates ff of the boiler-fine, as before described, and which is of the,full width of the stove, forms a chamber in which a portion of the heatfrom the'boiler-flue reverberates before it enters the enlarged mouthsof the diving-fines.

By this construction the requisite temperature for cooking, or otherculinary operations,'can be obtained in the extension F even when the'oven is employed in baking, which obviates the great objection thatexists against the rear-extension stoves now in use,'which are mainlyheated bythe return or upcastflue.

The damper G, at the rear of the extension F, communicating with theupcast-flue D, which is arranged below and at the rear of the latter, asbefore described, converts the entire width of the extensoin, when thedamper is opened, into a direct boiler-flue, and sub Witnesses Jar,HYATT, Jxo. J. Bosses.

noon on BUFFALO, NEW YORK,

